[Mike P.]

What application? HT, music, or both?

 

[Mike P.]

For a sub with a limited Xmax of 8 mm it would take a fair sized box to get any low end. Shown is each in 12 cu.ft or 8 cu.ft. 45 watts would reach Xmax. A 150 watt plate amp with a high pass filter at 18 hz would power them both if wired for a 4 ohm load.